CN109017453A - Integral type is just positioning supported and suspended bracket device - Google Patents
Integral type is just positioning supported and suspended bracket device Download PDFInfo
- Publication number
- CN109017453A CN109017453A CN201810868674.1A CN201810868674A CN109017453A CN 109017453 A CN109017453 A CN 109017453A CN 201810868674 A CN201810868674 A CN 201810868674A CN 109017453 A CN109017453 A CN 109017453A
- Authority
- CN
- China
- Prior art keywords
- cantilever
- horizontal
- tilting section
- adjustable
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000000707 wrist Anatomy 0.000 claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000012212 insulator Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 210000005069 ears Anatomy 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
Integral type is just positioning supported and suspended bracket device, and it includes Horizontal Cantilever, the inclined cantilever being welded in below Horizontal Cantilever and the positioning pipe being welded on the outside of inclined cantilever that integral type, which is just positioning bracket device,；Two pieces of adjustable plates are symmetrically welded above Horizontal Cantilever outer end；Inclined cantilever includes horizontal segment I and tilting section I；Positioning pipe includes tilting section II, horizontal segment II, vertical section and horizontal segment III, and tilting section II is parallel with tilting section I；Horizontal Cantilever inner end is hinged by insulator I and adjustable wrist arm pedestal I, and I lower end of inclined cantilever tilting section is fixedly connected by insulator II with the diagonal brace being hinged on adjustable wrist arm pedestal II, is equipped with rotary type Messenger Wire base above adjustable plate；Forward direction is fixed with adjustable locator support on positioning pipe horizontal segment II, and adjustable locator block end forward direction is equipped with limit locator.Structure of the invention is stable, it is easy for installation, convenient for adjusting.
Description
Technical field
The present invention relates to electrification railway contact net technical fields, and in particular to a kind of integral type is just positioning supported and suspended wrist
Arm assembly.
Background technique
Supported and suspended bracket device is used to support fixed carrier cable and contact line in electrifing railway contacting net system, protects
Card contact line is in horizontality.Currently, supported and suspended bracket device used in domestic electrifing railway contacting net system is equal
To be split type, either the Aluminium alloy arm for electric railway contact net as supporting part system of high-speed railway, the triangular steel bracket system of Line for Passenger Transportation or monoblock type wrist
Arm system, Horizontal Cantilever, inclined cantilever and positioning pipe are fastened by bolts between each other or bolt pin is hinged.This split type branch
Support suspension bracket device, components are more, and fastener quantity is big, and installation is extremely inconvenient, and structural stability is low, security risk
Greatly, operation maintenance large labor intensity, it is meagrely-populated not adapt to northwest China area especially, reaches few maintenance, or even exempt to tie up
The requirement of shield.
Summary of the invention
The present invention provides a kind of integral type and is just positioning supported and suspended bracket device, and it is more to solve prior art components, tightly
The problem of firmware quantity is big, and installation is inconvenient, and structural stability is low, and security risk is big, operation maintenance large labor intensity, and structure is steady
It is fixed, easy for installation, convenient for adjust.
The technical scheme adopted by the invention is that: integral type is just positioning supported and suspended bracket device, including integral type positive definite
Position bracket device, the integral type are just positioning bracket device and are including Horizontal Cantilever, the inclined cantilever below Horizontal Cantilever and be located at oblique
Positioning pipe on the outside of bracket；Two pieces of adjustable plates for having adjustment hole I are symmetrically welded above the outer end of the Horizontal Cantilever；The inclined cantilever
Including horizontal segment I and tilting section I；The positioning pipe includes tilting section II, horizontal segment II, vertical section and horizontal segment III, and horizontal
Section II, horizontal segment III and vertical section circular arc are excessive, and tilting section II is parallel with tilting section I；The horizontal segment I, horizontal segment III are distinguished
It is welded on by I-shaped connecting plate II, I-shaped connecting plate I below the outer end of Horizontal Cantilever；The lower end of the tilting section I passes through C
It is welded below type support and the inner end of Horizontal Cantilever, tilting section II is welded by I-shaped connecting plate III with tilting section I；
The inner end of the Horizontal Cantilever is fixedly connected with one end of rod insulator I, the other end of rod insulator I with it is adjustable
Formula cantilever base I is hinged, and I lower end of tilting section of the inclined cantilever is fixedly connected by rod insulator II with one end of diagonal brace,
The other end and adjustable wrist arm pedestal II of diagonal brace are hinged；The top of the adjustable plate is connected with by adjustment hole I and bolt pin
Rotary type Messenger Wire base；Forward direction is fixed with adjustable locator support, adjustable positioning on the horizontal segment II of the positioning pipe
The end forward direction of device support is equipped with limit locator.
The rotary type Messenger Wire base includes inverted U ears, briquetting and support wire clamp；Inverted U ears two sides are symmetrical
With adjustment hole II, upper end has rotation boss, and inverted U ears are sleeved on the outside of adjustable plate, and pass through adjustment hole II, tune
Knothole I and bolt pin are fixedly connected；The support wire clamp is sleeved on the upper end of connecting pin, and it is convex that connecting pin lower end is inserted into rotation
It is connect in platform and by fastening screw with rotation boss, briquetting is connected with by bolt pair I above the support wire clamp.
The adjustable wrist arm pedestal, adjustable wrist arm pedestal II include base body, cantilever base；The pedestal sheet
Body is made of vertical channel steel and horizontal channel steel right-angled intersection and back-to-back fixation, and horizontal channel steel front end vertical direction is symmetrically fixed
There are two T-slot roads；The vertical channel steel upper and lower ends are connect by bolt pair II with fixed channel steel, and the cantilever base passes through
Two T-bolt pairs are separately fixed at the front end in two T-slot roads；It is had on the contact surface of the T-slot road and T-bolt
Tooth socket is connected with antiskid plate between T-slot road upper and lower ends.
The I-shaped connecting plate upper and lower ends all have arc groove.
C-type support upper end has oblique angle circular arc, and lower end has right angle circular arc, makes the inclination of c-type support and inclined cantilever
I vertical welding of section.
I end of horizontal segment of the outer end of the Horizontal Cantilever, the both ends of positioning pipe and inclined cantilever is mounted on run-resistant pipe
Cap.
Compared to the prior art, the invention has the benefit that
1, Horizontal Cantilever, inclined cantilever, positioning pipe and cantilever support are welded as a whole, and improve the stability of contact net system, together
When reduce between each other connection components, reduce fastener quantity, reduce security risk, mitigate operation maintenance intensity.
2, it is equipped with adjustable plate above Horizontal Cantilever to connect with Messenger Wire base, Messenger Wire base installation site is easy to adjust, avoids existing
There is technology directly to punch on bracket, reduces its mechanical performance, while Messenger Wire base installation site is difficult to the defect adjusted.
3, it is connect by being connected with the diagonal brace of rod insulator with cantilever base between inclined cantilever and cantilever base, diagonal brace can
Scene processing, can submit the prewired efficiency of live bracket, reduce labor intensity simultaneously, improve construction efficiency.
4, cantilever base uses adjustable wrist arm pedestal, and cantilever base can move up and down in vertical direction T-slot road, real
Existing height of contact wire meets site operation requirement, and it is inevitable to solve site operation error, be easy to cause bracket installation accuracy
Inadequate defect.
5, adjustable locator support installation site is easy to adjust, facilitates installation maintenance, further decreases construction intensity, mentions
High construction efficiency.
6, bracket end is sealed using run-resistant pipe cap, prevents rainwater and worm bird excreta from penetrating into lumen and tube wall is caused to become rusty
The problems such as corruption, bursting by freezing, improves bracket service life.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is rotary type Messenger Wire base assembling structure schematic diagram of the present invention；
Fig. 3 is that integral type of the present invention is just positioning bracket apparatus structure schematic diagram；
Fig. 4 is rotary type Messenger Wire base structural schematic diagram of the present invention；
Fig. 5 is rotary type Messenger Wire base structural schematic diagram of the present invention；
Fig. 6 is adjustable wrist arm schematic diagram of base structure of the present invention；
Fig. 7 is the I-shaped connecting board structure schematic diagram of the present invention；
Fig. 8 is c-type support construction schematic diagram of the present invention.
Specific embodiment
The present invention is described in detail for 1-8 and specific embodiment with reference to the accompanying drawing.
Integral type is just positioning supported and suspended bracket device, including integral type is just positioning bracket device 1, the integral type positive definite
Position bracket device 1 includes Horizontal Cantilever 1-1, the inclined cantilever 1-2 below Horizontal Cantilever 1-1 and determines on the outside of inclined cantilever 1-2
Position pipe 1-3；Two pieces of adjustable plate 1-1-2 for having I 1-1-1 of adjustment hole are symmetrically welded above the outer end of the Horizontal Cantilever 1-1；It is described oblique
Bracket 1-2 includes I 1-2-2 of I 1-2-1 of horizontal segment and tilting section；The positioning pipe 1-3 includes II 1-3-1 of tilting section, horizontal segment II
1-3-2, vertical section 1-3-3 and III 1-3-4 of horizontal segment, and II 1-3-2 of horizontal segment, horizontal segment III 1-3-4 and vertical section 1-3-3 circle
Arc is excessive, and II 1-3-1 of tilting section is parallel with I 1-2-2 of tilting section；I 1-2-1 of horizontal segment, III 1-3-4 of horizontal segment pass through respectively
I-shaped II 1-7 of connecting plate, I 1-5 of I-shaped connecting plate are welded below the outer end of Horizontal Cantilever 1-1；I 1-2-2 of tilting section
Lower end pass through c-type and support and welded below the inner end of 1-4 and Horizontal Cantilever 1-1, II 1-3-1 of tilting section passes through I-shaped connecting plate III
1-6 and I 1-2-2 of tilting section is welded；
The inner end of the Horizontal Cantilever 1-1 is fixedly connected with one end of rod insulator I 9, the other end of rod insulator I 9
Hinged with adjustable wrist arm pedestal I 6, I lower end 1-2-2 of tilting section of the inclined cantilever 1-2 is by rod insulator II 10 and tiltedly
One end of support 5 is fixedly connected, and the other end and adjustable wrist arm pedestal II 8 of diagonal brace 5 are hinged；The top of the adjustable plate 1-1-2
Rotary type Messenger Wire base 2 is connected with by adjustment hole I 1-1-1 and bolt pin 2-6；II 1- of horizontal segment of the positioning pipe 1-3
The upper forward direction of 3-1 is fixed with adjustable locator support 3, and the end forward direction of adjustable locator support 3 is equipped with limit locator
4。
The rotary type Messenger Wire base 2 includes inverted U ears 2-1, briquetting 2-2 and support wire clamp 2-3；The inverted U is double
The two sides ear 2-1 symmetrically have II 2-1-1 of adjustment hole, and upper end has rotation boss 2-1-2, and inverted U ears 2-1 is sleeved on adjusting
The outside of plate 1-1-2, and be fixedly connected by II 2-1-1 of adjustment hole, adjustment hole I 1-1-1 and bolt pin 2-6；The support wire clamp
2-3 is sleeved on the upper end of connecting pin 2-5, and the lower end connecting pin 2-5 is inserted into rotation boss 2-1-2 and passes through fastening screw
2-7 is connect with rotation boss 2-1-2, is connected with briquetting 2-2 by I 2-4 of bolt pair above the support wire clamp 2-3.
The adjustable wrist arm pedestal 6, adjustable wrist arm pedestal II 8 include base body 6-1, cantilever base 6-3；Institute
It states base body 6-1 to be made of vertical channel steel 6-1-1 and horizontal channel steel 6-1-2 right-angled intersection and back-to-back fixation, and level trough
The front end steel 6-1-2 vertical direction is symmetrically fixed with two T-slot road 6-4；The vertical channel steel 6-1-1 upper and lower ends pass through bolt
II 6-7 of pair is connect with fixed channel steel 6-2, and the cantilever base 6-3 is separately fixed at two T-types by two T-bolt secondary 6-5
The front end of conduit 6-4；Tooth socket is had on the contact surface of the T-slot road 6-4 and T-bolt 6-5, on the T-slot road 6-4
Antiskid plate 6-6 is connected between lower both ends.
The I-shaped connecting plate 1-5 upper and lower ends all have arc groove 1-5-1.
The c-type support upper end 1-4 has oblique angle circular arc 1-4-2, and lower end has right angle circular arc 1-4-1, and c-type is made to support 1-
The I 1-2-2 vertical welding of tilting section of 4 and inclined cantilever 1-2.
I end 1-2-1 of horizontal segment of the outer end of the Horizontal Cantilever 1-1, the both ends of positioning pipe 1-3 and inclined cantilever 1-2 is equal
Run-resistant pipe cap 7 is installed.
When use by vertical channel steel 6-1-1, II 6-7 of bolt pair and fixed channel steel 6-2 by adjustable wrist arm pedestal I 6, can
Mode cantilever base II 8 is fixed on contact net column, and carrier cable is clamped in rotary type Messenger Wire base 2, by contact line
The end of limit locator 4 is clamped in, by adjusting Messenger Wire base installation site, adjusting adjustable 3 installation position of locator support
It sets and cantilever base 6-3 installation site meets the installation requirement of carrier cable and contact line.
Above-described embodiment, only presently preferred embodiments of the present invention, the practical range being not intended to limit the invention, thus it is all with
The equivalent variations that content described in the claims in the present invention is done should all be included within scope of the invention as claimed.
Claims (6)
1. integral type is just positioning supported and suspended bracket device, it is characterised in that: just positioning bracket device (1), institute including integral type
Stating integral type and just positioning bracket device (1) includes Horizontal Cantilever (1-1), the inclined cantilever (1-2) being located at below Horizontal Cantilever (1-1) and position
Positioning pipe (1-3) on the outside of inclined cantilever (1-2)；Being symmetrically welded two pieces above the outer end of the Horizontal Cantilever (1-1) has adjustment hole I
The adjustable plate (1-1-2) of (1-1-1)；The inclined cantilever (1-2) includes horizontal segment I (1-2-1) and tilting section I (1-2-2)；It is described
Positioning pipe (1-3) includes tilting section II (1-3-1), III (1-3- of horizontal segment II (1-3-2), vertical section (1-3-3) and horizontal segment
4), and horizontal segment II (1-3-2), horizontal segment III (1-3-4) and vertical section (1-3-3) circular arc are excessive, tilting section II (1-3-1) with
Tilting section I (1-2-2) is parallel；The horizontal segment I (1-2-1), horizontal segment III (1-3-4) pass through I-shaped connecting plate II respectively
(1-7), I-shaped connecting plate I (1-5) are welded below the outer end of Horizontal Cantilever (1-1)；The lower end of the tilting section I (1-2-2)
It is welded below inner end by c-type support (1-4) and Horizontal Cantilever (1-1), tilting section II (1-3-1) passes through I-shaped connecting plate III
(1-6) and tilting section I (1-2-2) is welded；
The inner end of the Horizontal Cantilever (1-1) is fixedly connected with one end of rod insulator I (9), rod insulator I (9) it is another
Hingedly with adjustable wrist arm pedestal I (6), lower end tilting section I (1-2-2) of the inclined cantilever (1-2) passes through rod insulator at end
II (10) are fixedly connected with the one end of diagonal brace (5), and the other end and adjustable wrist arm pedestal II (8) of diagonal brace (5) are hinged；The tune
The top of section plate (1-1-2) is connected with rotary type Messenger Wire base (2) by adjustment hole I (1-1-1) and bolt pin (2-6)；Institute
It states forward direction on the horizontal segment II (1-3-1) of positioning pipe (1-3) and is fixed with adjustable locator support (3), adjustable locator branch
The end forward direction of seat (3) is equipped with limit locator (4).
2. integral type according to claim 1 is just positioning supported and suspended bracket device, it is characterised in that: the rotary type
Messenger Wire base (2) includes inverted U ears (2-1), briquetting (2-2) and support wire clamp (2-3)；Inverted U ears (2-1) two sides pair
Weighing-appliance has adjustment hole II (2-1-1), and upper end has rotation boss (2-1-2), and inverted U ears (2-1) are sleeved on adjustable plate (1-
Outside 1-2), and be fixedly connected by adjustment hole II (2-1-1), adjustment hole I (1-1-1) and bolt pin (2-6)；The support line
Folder (2-3) is sleeved on the upper end of connecting pin (2-5), and the lower end connecting pin (2-5) is inserted into rotation boss (2-1-2) and leads to
It crosses fastening screw (2-7) to connect with rotation boss (2-1-2), be connected above the support wire clamp (2-3) by bolt pair I (2-4)
There is briquetting (2-2).
3. integral type according to claim 1 or 2 is just positioning supported and suspended bracket device, it is characterised in that: described adjustable
Formula cantilever base (6), adjustable wrist arm pedestal II (8) include base body (6-1), cantilever base (6-3)；The pedestal sheet
Body (6-1) is made of vertical channel steel (6-1-1) and (6-1-2) right-angled intersection of horizontal channel steel and back-to-back fixation, and horizontal channel steel
The front end (6-1-2) vertical direction is symmetrically fixed with two T-slot roads (6-4)；Vertical channel steel (6-1-1) upper and lower ends pass through
Bolt pair II (6-7) is connect with fixed channel steel (6-2), and the cantilever base (6-3) passes through two T-bolt pairs (6-5) difference
It is fixed on the front end of two T-slot roads (6-4)；The T-slot road (6-4) on the contact surface of T-bolt (6-5) with teeth
Slot is connected with antiskid plate (6-6) between T-slot road (6-4) upper and lower ends.
4. integral type according to claim 3 is just positioning supported and suspended bracket device, it is characterised in that: the I-shaped company
Fishplate bar (1-5) upper and lower ends all have arc groove (1-5-1).
5. integral type according to claim 4 is just positioning supported and suspended bracket device, it is characterised in that: the c-type support
The upper end (1-4) has oblique angle circular arc (1-4-2), and lower end has right angle circular arc (1-4-1), makes c-type support (1-4) and inclined cantilever
Tilting section I (1-2-2) vertical welding of (1-2).
6. integral type according to claim 5 is just positioning supported and suspended bracket device, it is characterised in that: the Horizontal Cantilever
End horizontal segment I (1-2-1) of the outer end of (1-1), the both ends of positioning pipe (1-3) and inclined cantilever (1-2) is mounted on anticreep
Type pipe cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868674.1A CN109017453B (en) | 2018-08-02 | 2018-08-02 | Integral type positive location supports hangs cantilever device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868674.1A CN109017453B (en) | 2018-08-02 | 2018-08-02 | Integral type positive location supports hangs cantilever device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109017453A true CN109017453A (en) | 2018-12-18 |
| CN109017453B CN109017453B (en) | 2023-11-21 |
Family
ID=64648789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810868674.1A Active CN109017453B (en) | 2018-08-02 | 2018-08-02 | Integral type positive location supports hangs cantilever device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109017453B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720239A (en) * | 2019-03-13 | 2019-05-07 | 中铁高铁电气装备股份有限公司 | A kind of low clearance single-track tunnel overhead contact line structure |
| CN109733250A (en) * | 2019-01-31 | 2019-05-10 | 中国铁路设计集团有限公司 | A kind of contact net system based on composite wrist-arm |
| CN109808551A (en) * | 2019-03-15 | 2019-05-28 | 范帅帅 | A kind of bracket assembling bracket |
| CN110588444A (en) * | 2019-10-18 | 2019-12-20 | 宝鸡保德利电气设备有限责任公司 | Insulating carrier cable seat |
| CN111890991A (en) * | 2020-06-28 | 2020-11-06 | 中铁第一勘察设计院集团有限公司 | Cantilever installation device and contact net |
| CN114954142A (en) * | 2022-07-11 | 2022-08-30 | 宝鸡保德利电气设备有限责任公司 | Integral type cantilever supporting and positioning device |
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| KR200272316Y1 (en) * | 2002-02-02 | 2002-04-17 | 주식회사 대동기술단 | An movable bracket for for electric railway |
| CN2883064Y (en) * | 2006-02-15 | 2007-03-28 | 中铁电气化局集团宝鸡器材厂 | Single baring arm suspension of single line/curved line tunnel |
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| CN202608589U (en) * | 2012-06-18 | 2012-12-19 | 陕西飞轮高铁装备股份有限公司 | Integral cantilever positioning device of low clearance tunnel of electric railway contact net |
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| CN208906699U (en) * | 2018-08-02 | 2019-05-28 | 中铁高铁电气装备股份有限公司 | Integral type is just positioning supported and suspended bracket device |
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| KR200272316Y1 (en) * | 2002-02-02 | 2002-04-17 | 주식회사 대동기술단 | An movable bracket for for electric railway |
| CN2883064Y (en) * | 2006-02-15 | 2007-03-28 | 中铁电气化局集团宝鸡器材厂 | Single baring arm suspension of single line/curved line tunnel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733250A (en) * | 2019-01-31 | 2019-05-10 | 中国铁路设计集团有限公司 | A kind of contact net system based on composite wrist-arm |
| CN109720239A (en) * | 2019-03-13 | 2019-05-07 | 中铁高铁电气装备股份有限公司 | A kind of low clearance single-track tunnel overhead contact line structure |
| CN109808551A (en) * | 2019-03-15 | 2019-05-28 | 范帅帅 | A kind of bracket assembling bracket |
| CN110588444A (en) * | 2019-10-18 | 2019-12-20 | 宝鸡保德利电气设备有限责任公司 | Insulating carrier cable seat |
| CN111890991A (en) * | 2020-06-28 | 2020-11-06 | 中铁第一勘察设计院集团有限公司 | Cantilever installation device and contact net |
| CN114954142A (en) * | 2022-07-11 | 2022-08-30 | 宝鸡保德利电气设备有限责任公司 | Integral type cantilever supporting and positioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109017453B (en) | 2023-11-21 |
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Inventor after: Li Zhongqi Inventor after: Shen Hua Inventor after: Gong Jiangang Inventor after: Deng Xianglong Inventor after: Lin Jian Inventor after: Zhao Jinfeng Inventor after: Feng Yong Inventor before: Li Zhongqi Inventor before: Gong Jiangang Inventor before: Deng Xianglong Inventor before: Lin Jian Inventor before: Zhao Jinfeng Inventor before: Feng Yong |
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